Alloy



UNITED STAIES PATENT OFFICE.

FOSTER MILLIKEN, OF LAWRENCE, NEW YORK ASSIGNOR TO FOSTER MILLIKEN',

S. FULLERTON WEAVER, AND JAMES M: BEPBLIER, AS TRUSTEES.

ALLOY.

T all whom it may concern Be it known that I, FOSTER MILLIKEN, a citizenof the United States, and a resident of Lawrence, in the county ofNassau and State of New York, have invented 'a new and Improved Alloy,of which the following is 'a full, clear, and exact description.

The invention relates to alloys containing aluminum and lead as theprincipal ingredinamely: i Aluminum 89 to 94 per Cent. Lea-d 5 to 10 anda trace'of an oxidizing material such as metallic magnesium.

In practice, the aluminum and the lead are mixed while'in a moltenstateand about 1 &

Specification of Letters Patent. Patented J l 1 9 192 1920. Serial No.383,888.

to 2 per cent. of metallic magnesium is added to deoxidize or purifyboth the alum num and the lead with a trace of the oxidizing materialbeing incorporated in the alloy and the remainder paming away with theslag.

It is understood that aluminum alloys as now generally formed are porousand one of the properties of my improved alloy as herein set forth isits increased density owing to the use of the purified lead and thepurified aluminum.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent An alloy containin aluminum, lead, and an oxidizingagent, t e aluminum and the lead being in a purified state and inproportion substantially as specified, the said oxidizing agent bein aportion of 1 to 2 per cent. of the deoxi izing agent used as the mediumfor urifying the said aluminum and the said ead and remaining as an integral part of the alloy after purification of the said aluminum andlead,'the said alloy being characterized by increased density, abilityto withstand pressure and high resistance to corrosion. 1

3 OSTER MILLIKEN.

